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| |
| #include <QUrl> |
| #include <QVector> |
| #include <QXmlNamePool> |
| |
| #include "qabstractxmlnodemodel_p.h" |
| #include "qemptyiterator_p.h" |
| #include "qitemmappingiterator_p.h" |
| #include "qsequencemappingiterator_p.h" |
| #include "qsimplexmlnodemodel.h" |
| #include "qsingletoniterator_p.h" |
| |
| QT_BEGIN_NAMESPACE |
| |
| using namespace QPatternist; |
| |
| class QSimpleXmlNodeModelPrivate : public QAbstractXmlNodeModelPrivate |
| { |
| public: |
| QSimpleXmlNodeModelPrivate(const QXmlNamePool &np) : namePool(np) |
| { |
| } |
| |
| mutable QXmlNamePool namePool; |
| }; |
| |
| /*! |
| \class QSimpleXmlNodeModel |
| \brief The QSimpleXmlNodeModel class is an implementation of QAbstractXmlNodeModel sufficient for many common cases. |
| \reentrant |
| \since 4.4 |
| \ingroup xml-tools |
| \inmodule QtXmlPatterns |
| |
| Subclassing QAbstractXmlNodeModel can be a significant task, because it |
| requires implementing several, complex member functions. QSimpleXmlNodeModel |
| provides default implementations of these member functions that are suitable |
| for a wide range of node models. |
| |
| Subclasses of QSimpleXmlNodeModel must be thread-safe. |
| */ |
| |
| /*! |
| Constructs a QSimpleXmlNodeModel for use with with the specified |
| \a namePool. |
| */ |
| QSimpleXmlNodeModel::QSimpleXmlNodeModel(const QXmlNamePool &namePool) |
| : QAbstractXmlNodeModel(new QSimpleXmlNodeModelPrivate(namePool)) |
| { |
| } |
| |
| /*! |
| Destructor. |
| */ |
| QSimpleXmlNodeModel::~QSimpleXmlNodeModel() |
| { |
| } |
| |
| /*! |
| If \a node is an element or attribute, typedValue() is called, and |
| the return value converted to a string, as per XQuery's rules. |
| |
| If \a node is another type of node, the empty string is returned. |
| |
| If this function is overridden for comments or processing |
| instructions, it is important to remember to call it (for elements |
| and attributes having values not of type \c xs:string) to ensure that |
| the values are formatted according to XQuery. |
| |
| */ |
| QString QSimpleXmlNodeModel::stringValue(const QXmlNodeModelIndex &node) const |
| { |
| const QXmlNodeModelIndex::NodeKind k= kind(node); |
| if(k == QXmlNodeModelIndex::Element || k == QXmlNodeModelIndex::Attribute) |
| { |
| const QVariant &candidate = typedValue(node); |
| if(candidate.isNull()) |
| return QString(); |
| else |
| return AtomicValue::toXDM(candidate).stringValue(); |
| } |
| else |
| return QString(); |
| } |
| |
| /*! |
| Returns the base URI for \a node. This is always the document |
| URI. |
| |
| \sa documentUri() |
| */ |
| QUrl QSimpleXmlNodeModel::baseUri(const QXmlNodeModelIndex &node) const |
| { |
| return documentUri(node); |
| } |
| |
| /*! |
| Returns the name pool associated with this model. The |
| implementation of name() will use this name pool to create |
| names. |
| */ |
| QXmlNamePool &QSimpleXmlNodeModel::namePool() const |
| { |
| Q_D(const QSimpleXmlNodeModel); |
| |
| return d->namePool; |
| } |
| |
| /*! |
| Always returns an empty QVector. This signals that no namespace |
| bindings are in scope for \a node. |
| */ |
| QVector<QXmlName> QSimpleXmlNodeModel::namespaceBindings(const QXmlNodeModelIndex &node) const |
| { |
| Q_UNUSED(node); |
| return QVector<QXmlName>(); |
| } |
| |
| /*! |
| Always returns a default constructed QXmlNodeModelIndex instance, |
| regardless of \a id. |
| |
| This effectively means the model has no elements that have an id. |
| */ |
| QXmlNodeModelIndex QSimpleXmlNodeModel::elementById(const QXmlName &id) const |
| { |
| Q_UNUSED(id); |
| return QXmlNodeModelIndex(); |
| } |
| |
| /*! |
| Always returns an empty vector, regardless of \a idref. |
| |
| This effectively means the model has no elements or attributes of |
| type \c IDREF. |
| */ |
| QVector<QXmlNodeModelIndex> QSimpleXmlNodeModel::nodesByIdref(const QXmlName &idref) const |
| { |
| Q_UNUSED(idref); |
| return QVector<QXmlNodeModelIndex>(); |
| } |
| |
| QT_END_NAMESPACE |
| |
| |